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Cheap flights from Ireland to Belfast from €40

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ireland to Belfast departing on 23/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags
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Find the cheapest flights from Ireland to Belfast

Recent return flight deals from Ireland to Belfast

Enter your travel dates to find the best prices.
Multiple Airlines Logo
09:55 - 15:15
ORK
-
BFS
5h 20m
1 stop
Multiple Airlines Logo
15:40 - 23:55
BFS
-
ORK
8h 15m
1 stop
€79Multiple Airlines
Wed, 6 May - Wed, 13 May
Multiple Airlines Logo
23:50 - 08:30
DUB
-
BFS
8h 40m
1 stop
Multiple Airlines Logo
12:45 - 20:30
BFS
-
DUB
7h 45m
1 stop
€80Multiple Airlines
Thu, 7 May - Thu, 14 May
Multiple Airlines Logo
22:00 - 11:35
DUB
-
BFS
13h 35m
1 stop
Multiple Airlines Logo
16:40 - 21:20
BFS
-
DUB
4h 40m
1 stop
€81Multiple Airlines
Tue, 21 Apr - Tue, 28 Apr
Multiple Airlines Logo
19:55 - 08:05
DUB
-
BFS
12h 10m
1 stop
Multiple Airlines Logo
07:30 - 14:50
BFS
-
DUB
7h 20m
1 stop
€82Multiple Airlines
Mon, 27 Apr - Wed, 6 May
Multiple Airlines Logo
10:05 - 15:15
DUB
-
BFS
5h 10m
1 stop
Multiple Airlines Logo
15:40 - 20:45
BFS
-
DUB
5h 05m
1 stop
€84Multiple Airlines
Wed, 6 May - Wed, 13 May
Multiple Airlines Logo
21:30 - 08:30
DUB
-
BFS
11h 00m
1 stop
Multiple Airlines Logo
12:45 - 20:30
BFS
-
DUB
7h 45m
1 stop
€85Multiple Airlines
Thu, 7 May - Thu, 14 May
Multiple Airlines Logo
20:20 - 09:05
ORK
-
BFS
12h 45m
1 stop
Multiple Airlines Logo
09:40 - 19:55
BFS
-
ORK
10h 15m
1 stop
€85Multiple Airlines
Fri, 8 May - Fri, 15 May
Multiple Airlines Logo
10:10 - 21:55
DUB
-
BFS
11h 45m
1 stop
Multiple Airlines Logo
18:50 - 00:05
BFS
-
DUB
5h 15m
1 stop
€85Multiple Airlines
Mon, 20 Apr - Mon, 27 Apr
Multiple Airlines Logo
20:20 - 09:05
ORK
-
BFS
12h 45m
1 stop
Multiple Airlines Logo
09:40 - 19:55
BFS
-
ORK
10h 15m
1 stop
€85Multiple Airlines
Fri, 8 May - Fri, 15 May
Multiple Airlines Logo
06:30 - 12:15
DUB
-
BFS
5h 45m
1 stop
Multiple Airlines Logo
16:40 - 23:20
BFS
-
DUB
6h 40m
1 stop
€87Multiple Airlines
Tue, 5 May - Tue, 12 May

British Airways flights from Ireland to Belfast

Our best British Airways deals on Ireland to Belfast flight tickets
British Airways
27 Apr
DUB20:30Dublin
12h 20m
1 stop
BHD08:50Belfast City
3 May
BHD19:10Belfast City
12h 35m
1 stop
DUB07:45Dublin
€251
British Airways
27 Apr
DUB20:30Dublin
11h 05m
1 stop
BHD07:35Belfast City
3 May
BHD13:10Belfast City
6h 20m
1 stop
DUB19:30Dublin
€261
British Airways
27 Apr
DUB20:30Dublin
12h 20m
1 stop
BHD08:50Belfast City
3 May
BHD20:10Belfast City
11h 35m
1 stop
DUB07:45Dublin
€262

Aer Lingus flights from Ireland to Belfast

Our best Aer Lingus deals on Ireland to Belfast flight tickets
Aer Lingus
27 Apr
DUB09:25Dublin
8h 20m
1 stop
BHD17:45Belfast City
3 May
BHD07:00Belfast City
14h 45m
1 stop
DUB21:45Dublin
€184
Aer Lingus
27 Apr
DUB07:10Dublin
13h 40m
1 stop
BHD20:50Belfast City
3 May
BHD07:00Belfast City
14h 45m
1 stop
DUB21:45Dublin
€195
Aer Lingus
27 Apr
DUB17:50Dublin
3h 00m
1 stop
BHD20:50Belfast City
3 May
BHD09:50Belfast City
4h 45m
1 stop
DUB14:35Dublin
€204

momondo Fare Finder

 
Customise your flight search to find flights from Ireland to Belfast that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 13,528 searches. Data last updated 25 March 2026.
Use the filters below to find and compare flights from Ireland to Belfast that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

CorkBelfast

ORK - BFS

ORKBFS

Cork

Wed 6/5

09:55-15:15

1 stop5h 20m

Belfast Intl

Wed 13/5

15:40-23:55

1 stop8h 15m

€79

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Thu 7/5

23:50-08:30

1 stop8h 40m

Belfast Intl

Thu 14/5

12:45-20:30

1 stop7h 45m

€80

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Tue 21/4

22:00-11:35

1 stop13h 35m

Belfast Intl

Tue 28/4

16:40-21:20

1 stop4h 40m

€81

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Mon 27/4

19:55-08:05

1 stop12h 10m

Belfast Intl

Wed 6/5

07:30-14:50

1 stop7h 20m

€82
Fastest return journey

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Wed 6/5

10:05-15:15

1 stop5h 10m

Belfast Intl

Wed 13/5

15:40-20:45

1 stop5h 05m

€84

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Thu 7/5

21:30-08:30

1 stop11h 00m

Belfast Intl

Thu 14/5

12:45-20:30

1 stop7h 45m

€85

CorkBelfast

ORK - BFS

ORKBFS

Cork

Fri 8/5

20:20-09:05

1 stop12h 45m

Belfast Intl

Fri 15/5

09:40-19:55

1 stop10h 15m

€85

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Mon 20/4

10:10-21:55

1 stop11h 45m

Belfast Intl

Mon 27/4

18:50-00:05

1 stop5h 15m

€85

CorkBelfast

ORK - BFS

ORKBFS

Cork

Fri 8/5

20:20-09:05

1 stop12h 45m

Belfast Intl

Fri 15/5

09:40-19:55

1 stop10h 15m

€85

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Tue 5/5

06:30-12:15

1 stop5h 45m

Belfast Intl

Tue 12/5

16:40-23:20

1 stop6h 40m

€87

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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See travel insights to Belfast from

How to get the cheapest flight ticket from Ireland to Belfast

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Ireland to Belfast?

Ryanair is the most popular carrier operating from Ireland to Belfast

Cheap Ireland to Belfast flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ireland to Belfast

Fastest flight time

3h 25m

Direct flights

None
The fastest flight from Ireland to Belfast takes 3h 25m
There are no direct flights from Ireland to Belfast. There are no popular flight routes from Ireland to Belfast.
Search flight deals

  • When did momondo last update prices for flights from Ireland to Belfast?

    Prices for flights from Ireland to Belfast are refreshed on a daily basis.

  • How old do you have to be to fly from Ireland to Belfast?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Ireland to Belfast.

  • What documentation or ID do you need to fly to Belfast?

    The required travel and health documents for your Belfast trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's licence and a passport valid for six months after your intended arrival at Belfast. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal from Ireland to Belfast?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Ireland to Belfast . Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Ireland to Belfast with flexible booking policies on momondo?

Yes. All flights to Belfast from Ireland on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Ireland to Belfast?

Once all potential Ireland to Belfast flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Ireland to Belfast right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Ireland to Belfast now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Belfast and let you know when they change.

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Find better results for your trip to the United Kingdom

Fly into one of these airports located in Belfast

Airports listed have a maximum distance of 19.6 km from Belfast
Belfast Intl Airport
Belfast City Airport